1081024590 has 64 divisors (see below), whose sum is σ = 2688759360. Its totient is φ = 277831680.

The previous prime is 1081024583. The next prime is 1081024603. The reversal of 1081024590 is 954201801.

It is a happy number.

It is a super-2 number, since 2×1081024590² = 2337228328369336200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887662 + ... + 888878.

It is an arithmetic number, because the mean of its divisors is an integer number (42011865).

Almost surely, 2^1081024590 is an apocalyptic number.

1081024590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1081024590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344379680).

1081024590 is an abundant number, since it is smaller than the sum of its proper divisors (1607734770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1081024590 is a wasteful number, since it uses less digits than its factorization.

1081024590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1081024590 is about 32878.9383952706. The cubic root of 1081024590 is about 1026.3099143952.

The spelling of 1081024590 in words is "one billion, eighty-one million, twenty-four thousand, five hundred ninety".